Rabbit parasitic and fungal diseases Flashcards

1
Q

Etiology of hepatic coccidiosis

A

Eimeria stiedae

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2
Q

clinical signs of hepatic coccidiosis

A

hepatomegaly, icterus, anorexia diarrhea at terminal stages

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3
Q

Epizootiology of hepatic coccidiosis

A

fecal oral transmission younger rabbits more severely affected possible dissemination via lymph or intravascular

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4
Q

Pathology of hepatic coccidiosis

A

hepatomegaly, multifocal yellowish/white spots not he liver biliary exudate, bile duct dilatation

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5
Q

Histopathologic lesions associated with hepatic coccidiosis

A

papillomatous hyperplasia of bile ducts presence of Eimeria at various life stages

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6
Q

Diagnosis of hepatic coccidiosis

A

bilirubinemia leukocytosis, anemia decreased fibrinogen Fecal exam liver microscopy

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7
Q

Etiology of intestinal coccidiosis

A

Eimeria spp.

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8
Q

Clinical signs of intestinal coccidiosis

A

Preweaning rabbits resistant diarrhea, weight loss, decreased growth rate Death due to dehydration

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9
Q

Epizootiology of intestinal coccidiosis

A

fecal oral transmission ingestion of sporocysts

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10
Q

Pathology of intestinal coccidiosis

A

white foci of necrosis on intestinal wall

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11
Q

Diagnosis of intestinal coccidiosis

A

ID of oocytes on fecal PCR

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12
Q

Treatment of coccidiosis

A

sulfaquinoxaline, strict sanitation

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13
Q

Etiology of cryptosporidiosis

A

Cryptosporidium cuniculis

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14
Q

Clinical signs of cryptosporidiosis

A

lethargy, anorexia, diarrhrea

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15
Q

Epizootiology of cryptosporidiosis

A

ingestion of sporulated oocysts shedding of oocysts 7-14 days post infection

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16
Q

Pathology of cryptosporidiosis

A

blunted villi edema of lamina propria dilation of ileal lacteals

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17
Q

Diagnosis of cryptosporidiosis

A

PCR

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18
Q

Treatment of cryptosporidiosis

A

supportive care, sanitation practices

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19
Q

Etiology of encephalitozoonosis

A

Encephalitozoon cuniculi

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20
Q

Clinical signs of encephalitozoonosis

A

CNS signs - convulsions, tremors, torticollis, paresis, coma renal failure

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21
Q

Epizootiology of encephalitozoonosis

A

horizontal transmission infected urine in utero vertical transmission

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22
Q

Pathology of encephalitozoonosis

A

white pinpoint indented spots on renal cortex lymphoplasmacytic infiltrates in the intestinal tissues granulomatous encephalitis

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23
Q

Diagnosis of encephalitozoonosis

A

ID organism on histopathology - brain and kidney Geimsa, Gram or Goodpasture’s stains Serolgy PCR

24
Q

Differential diagnoses for encephalitozoonosis

A

splay leg bacterial meningitis (P. multocida) rabbit hemorrhagic disease

25
Q

Etiology of rabbit ear mite

A

Psoroptes cuniculi

26
Q

Clinical signs of rabbit ear mite

A

pruritus, tan crusty exudate on inner surfaces of external ear

27
Q

Epizootiology of rabbit ear mite

A

All stages live on host life cycle 21 days

28
Q

Pathology of rabbit ear mite

A

chronic inflammation Malpighian layer hypertrophy parakeratosis epithelial sloughing

29
Q

Diagnosis of rabbit ear mite

A

direct observation skin scrape

30
Q

Species of Cheyletiella

A

C. parasitovorax C. takahasii C. ochotonae C. johnsoni

31
Q

Clinical signs of cheyletiellosis

A

hair loss over scapulae grey-white scale NOT pruritic

32
Q

Epizootiology of cheyletiellosis

A

All stages live on host

33
Q

Pathology of cheyletiellosis

A

mild dermatitis, hyperkeratosis, inflammatory cell infiltrate

34
Q

Etiology of sarcoptic mange

A

Sarcoptes scabiei

35
Q

Clinical signs of sarcoptic mange

A

intense pruritis hair loss, abrasions from scratching

36
Q

Pathology of sarcoptic mange

A

skin hyperplasia, hyperkeratosis dermal inflammatory response

37
Q

Etiology of dermatophytosis

A

Trichophyton mentagrophytes Microsporum canis

38
Q

Clinical signs of dermatophytosis

A

circular alopecia with erythematous margin, and thin desquamation. pruritis absent

39
Q

Epizootiology of dermatophytosis

A

young rabbits more susceptible contact with other animals and contaminated environment

40
Q

Pathology of dermatophytosis

A

mild to severe dermatitis

41
Q

Diagnosis of dermatophytosis

A

Woods lamp fluorescence detection for M. canis skin scraping reveals arthroconidia fungal culture - DTM or Sabouraud dextrose agar

42
Q

Treatment of dermatophytosis

A

1:10 bleach for environment griseofulvin itraconazole, other azoles

43
Q

Etiology of pneumocystosis

A

Pneumocystis cuniculi

44
Q

Clinical signs of pneumocystosis

A

severe interstitial pneumonitis in immunocompromised rabbits

45
Q

Epizootiology of pneumocystis

A

immunosuppression via corticosteroids or young age

46
Q

Pathology of pneumocystosis

A

cystic forms present in lungs on toluidine blue, GMS, PAS stains interstitial thickening of alveolar septa increased numbers of type 2 epithelial cells

47
Q

Diagnosis of pneumocystosis

A

PCR of BAL and other lung washes serology microscopic detection

48
Q

What species?

A

Taenia psiformis

49
Q

Natural host for this parasite

A

Racoon

Baylisascaris procyonis

50
Q

Most commonly caused by

a. Psoroptes cuniculi
b. Sarcoptes scabei
c. Chyeletiella parasitovorax
d. Trichophyton mentagrophytes

A

c. Chyeletiella parasitovorax

51
Q

Clinical sign of

a. Chyeletiella
b. Psoroptes
c. Sarcoptes

d, Notoedres

A

b. Psoroptes

52
Q

Causative agent

A

Eimeria stiedae

53
Q

Identification

A

Chyeletiella parasitovorax

54
Q

Clinical signs

A

none

Passalaru ambiguus usually does not cause clinical signs in rabbits

55
Q

Identification

A

Passalarus ambiguus

56
Q

Most likely causative agent

A

Pheumonocystis oryctolagi